Analogue telephone relay station to amplify the call signal

The RT108 is a multifunctional telephone relay station, presented in a easily installed wall-mounted plastic box.
For direct control of a buzzer or alarm system, operating PLCs, etc.
Triggered by a call from the analogue call centre or by direct current.
Must be powered from the mains grid (110 to 230 Vac) or by direct current (10 to 56 Vdc).